Re: [PATCH 4.14 00/50] 4.14.217-rc1 review

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On Fri, Jan 22, 2021 at 7:42 AM Nathan Chancellor
<natechancellor@xxxxxxxxx> wrote:
>
> On Fri, Jan 22, 2021 at 03:36:04PM +0000, Will Deacon wrote:
> > On Fri, Jan 22, 2021 at 08:43:18PM +0530, Naresh Kamboju wrote:
> > > On Fri, 22 Jan 2021 at 20:38, Greg Kroah-Hartman
> > > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > > >
> > > > On Fri, Jan 22, 2021 at 08:32:46PM +0530, Naresh Kamboju wrote:
> > > > > On Fri, 22 Jan 2021 at 19:45, Greg Kroah-Hartman
> > > > > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > > > > >
> > > > > > This is the start of the stable review cycle for the 4.14.217 release.
> > > > > > There are 50 patches in this series, all will be posted as a response
> > > > > > to this one.  If anyone has any issues with these being applied, please
> > > > > > let me know.
> > > > > >
> > > > > > Responses should be made by Sun, 24 Jan 2021 13:57:23 +0000.
> > > > > > Anything received after that time might be too late.
> > > > > >
> > > > > > The whole patch series can be found in one patch at:
> > > > > >         https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.217-rc1.gz
> > > > > > or in the git tree and branch at:
> > > > > >         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
> > > > > > and the diffstat can be found below.
> > > > > >
> > > > > > thanks,
> > > > > >
> > > > > > greg k-h
> > > > >
> > > > > arm64 clang-10 builds breaks due to this patch on
> > > > >    - stable-rc 4.14
> > > > >    - stable-rc 4.9
> > > > >    - stable-rc 4.4
> > > > >
> > > > > > Will Deacon <will@xxxxxxxxxx>
> > > > > >     compiler.h: Raise minimum version of GCC to 5.1 for arm64
> > > > >
> > > > > arm64 (defconfig) with clang-10 - FAILED
> > > >
> > > > How is a clang build breaking on a "check what version of gcc is being
> > > > used" change?
> > > >
> > > > What is the error message?
> > >
> > > make --silent --keep-going --jobs=8
> > > O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm64
> > > CROSS_COMPILE=aarch64-linux-gnu- 'HOSTCC=sccache clang' 'CC=sccache
> > > clang'
> > > In file included from <built-in>:1:
> > > include/linux/kconfig.h:74:
> > > include/linux/compiler_types.h:58:
> > > include/linux/compiler-gcc.h:160:3: error: Sorry, your version of GCC
> > > is too old - please use 5.1 or newer.
> > > # error Sorry, your version of GCC is too old - please use 5.1 or newer.
> > >   ^
> > > 1 error generated.
> > >
> > > build error link:
> > > https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/jobs/980489003#L514
> >
> > Urgh, looks like we need backports of 815f0ddb346c
> > ("include/linux/compiler*.h: make compiler-*.h mutually exclusive") then.
> >
> > Greg -- please drop my changes from 4.14, 4.9 and 4.4 for now and I'll
> > look at this next week.
>
> That backport is going to be pretty gnarly, there was a pretty decent
> tailwind of fixes around that patch IIRC.
>
> The simple solution would be to stick a !defined(__clang__) in that
> preprocessor conditional so that it truly fires only for GCC.

I agree with that approach.
-- 
Thanks,
~Nick Desaulniers



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